Brief Product Description

DHSB‑T1 is the sender‑receiver optical unit for SICK DUSTHUNTER SB series dust concentration monitoring systems. Based on backward scattered‑light measuring principle, it uses a modulated laser diode to detect airborne dust particles inside industrial gas ducts. Integrated optical transmitter, high‑sensitivity detector and signal processing electronics are built into one compact enclosure. Equipped with purge‑air interface to protect optical lenses from dust contamination, it delivers real‑time scattered‑light intensity data for calculating dust concentration. With robust industrial housing suitable for harsh flue‑gas environments, it supports RS485 service communication and status indication. Widely supplied as fully‑tested surplus and refurbished spare parts for on‑site maintenance and retrofit of existing continuous emission monitoring systems.

Brand SICK (Germany)

Model: DHSB-T1

Part Number PN: 1043910

Serial Number SN: 10388585

Power Supply: 24V DC

Specification Description: Dist. flange-meas. vol. 400mm (Flange distance measurement, range 400mm)

Manufacturer: SICK Engineering GmbH

Address: D-01458 Ottendorf-Okrilla

Origin: Made in Germany

Certification Mark: CE; Laser Warning Triangle Mark

Core Product Functions

• Implement backward scattered‑light measurement for dust particles within exhaust gas ducts
• Modulated laser emission and scattered‑light signal acquisition for particle concentration detection
• Built‑in optical contamination monitoring to track lens fouling and trigger warning alarms
• Purge‑air port connection keeps optical surfaces clean from sticky dust and flue‑gas deposits
• On‑board signal pre‑processing converts optical signals into digital measurement data for main controller
• RS485 service interface for parameter configuration, diagnostic reading and on‑site commissioning
• Status LED indicators display running condition, warning and fault status for quick field inspection
• Swivel‑out mechanical design facilitates convenient access for inspection and replacement without duct disassembly

• Supports gravimetric calibration to convert scattered‑light readings into actual dust concentration values

Application Scenarios

• Continuous Emission Monitoring Systems (CEMS) for power plant boiler flue‑gas dust measurement
• Waste‑to‑energy incineration plant exhaust dust concentration online monitoring
• Cement, metallurgy and chemical industry flue‑gas dust emission compliance monitoring
• Dust monitoring inside exhaust ducts for waste gas treatment and bag‑house filter leak detection
• Environmental protection compliance monitoring for industrial process exhaust pipelines

• Spare sender‑receiver unit for maintenance, troubleshooting and upgrade of installed SICK DUSTHUNTER SB systems

FAQ (Frequently Asked Questions)

• Q: Measured dust readings stay zero or show abnormally low values?
  A: Check purge‑air supply, optical lens contamination, laser unit failure, mounting offset or signal cable connection faults.
• Q: System keeps reporting optical contamination warning or fault alarms?
  A: Inspect purge‑air pressure and quality, lens surface dust accumulation, moisture condensation or aging optical components.
• Q: Can DHSB‑T1 be disassembled or replaced while the duct is running at high‑temperature?
  A: Isolate process gas, cool down equipment and follow site lockout‑tagout procedures; high‑temperature online replacement is strictly forbidden.
• Q: Can DHSB‑T1 work with other brands of dust analyzers or CEMS controllers?
  A: It is purpose‑built for SICK DUSTHUNTER SB series systems. Proprietary signal and mechanical interface prevent cross‑brand compatibility.
• Q: Is SICK DHSB‑T1 available for brand‑new CEMS projects?
  A: This legacy sender‑receiver unit has reached end‑of‑life. Only surplus and fully‑tested refurbished units are available for existing‑site maintenance work.